THE boys, who will open the main stage at Radio 1's Big Weekend in Glasgow on Saturday, admit they take nothing for granted and are grateful for the support of their fans.

Zayn, Liam, Harry, Niall and Louis have a raft of girl fans everywhere

HARRY Styles has admitted One Direction are “very lucky” to have their Scottish fans.

The boys are the hottest group on the planet and no one will get bigger screams tomorrow when they open the main stage at Radio 1’s Big Weekend in Glasgow.

This month they had to change hotel rooms in Peru when fans blocked the entrances and screaming girls follow them everywhere.

Tomorrow there will be as many fans outside the event – Europe’s largest free-ticketed event at 25,000 people each day – as inside.

Harry said: “Any time there is an event or anything, they just surprise us and go above and beyond and it’s amazing that still happens to us and we’re just very, very lucky to have the fans that we have.”

It’s only been four years since Harry, 20, Niall Horan, 20, Zayn Malik, 21, Liam Payne, 20 and Louis Tomlinson, 22, were put together on The X Factor.

They didn’t even win the show but their three albums since have made them massive, with four Brit Awards and even their own blockbuster film.

At the eye of the storm, the boys, despite how young they are and how easy they could go off the rails, take nothing for granted.

Harry said: “There’s just no way to kind of comprehend it.

“You never imagine that anything gets to this level and we’re just so happy and so, so grateful for everything. The fans have made it all happen and it’s insane.”

There will be more hysteria on the menu tomorrow when the boys land in Scotland and play the Glasgow Green event.

It’s going to be a quickie, they are playing Dublin tomorrow as well on their Where We Are Tour and have to be back for another show there on Sunday.

Liam said the screaming and the love their fans have for them is something the boys don’t deal with every day.

He said: I don’t think it’s something you ever get used to. It doesn’t happen every day either.

“Sometimes you can go for a few days without running into a load of fans.”

Despite not winning The X Factor, the boys have surpassed any of the winners and are just as big (if not bigger) than international stars like Coldplay, Mumford & Sons and Adele.

Their three albums, Up All Night, Take Me Home and Midnight Memories, have all gone to No1 in the US – their debut missed the top spot in the UK but the other two also hit No1 here.

They can now sell out New York’s famous Madison Square Garden, as well as Wembley, and are a truly global band.

They have their doubters. Usually it’s teenage boys jealous the girls in their class only have eyes for Harry, but the band are still in their early 20s and have started co-writing many of their tracks.

Liam said: “People say we don’t work hard and it’s all a game or whatever but we just want to make music. Every lad out there that was thinking, ‘Oh One Direction are this and that or whatever’, next album, pick up our album and see what you feel.”

As well as international fame, the boys are also the richest UK boyband ever.

They made £45million last year and are now worth £70million. And while that will be making their record label boss Simon Cowell a very happy man – well, he has a baby son to feed – the money and fame have also helped the boys to develop as human beings.

Liam said: “I think for me and Zayn, actually in particular, we weren’t that confident as people and because you have to talk to so many people now it gives you so many more people skills.

“Like when I used to go to family parties as a kid I couldn’t hold a conversation. Even with my own uncle. So it’s nice now that I’ve learnt those skills.”

Always the quietest member of the group, Zayn has to be prodded for his answer.

He laughed: “Oh yes, definitely. I do agree with Liam in that sense. It’s really built our confidence and our social skills and helps us in social situations now.

“We do find it a bit easier to kind of carry ourselves and speak to people – it’s cool.”

It’s been an incredible four years for the boys and given they are still so young it could continue for a long time to come.

Harry said: “We by no means think we’ve done it all and think we haven’t got anything left to do.

“I think we’ve got so much that we still want to do and a lot of things we still want to achieve.